All of Earth's water in a single sphere (2019) (usgs.gov)

Article summary

The article appears to discuss the volume of Earth's water, comparing it to a sphere, and how it relates to other celestial bodies like Ceres. The discussion revolves around visualizing and understanding the scale of this volume. Commenters are using various analogies and comparisons to grasp the magnitude of Earth's water. The actual article text is not available, but the comments provide insight into the topic.

Main themes

• Water volume visualization
• Celestial body comparisons
• Space exploration
• Sustainability
• Mathematical concepts
• Scientific terminology

What commenters say

• The volume of Earth's water is comparable to the size of the dwarf planet Ceres, but much less dense.
• Visualizing the volume of a sphere is challenging due to the exponential growth of volume with radius.
• Some argue that the term 'exponential' is often misused and should be reserved for specific mathematical contexts, while others claim it can be used more broadly to describe fast growth.
• The discussion of Earth's water volume and celestial bodies leads to speculation about space exploration, terraforming, and the potential for human habitation beyond Earth.
• The concept of exponential growth is distinct from polynomial growth, and the terms should not be used interchangeably.
• The use of analogies, such as comparing the volume of water to a sphere or a cube, can help in understanding and visualizing large scales.
• There is disagreement about the feasibility of long-term space travel and colonization, with some arguing that it is a necessary step for humanity's survival and others expressing skepticism about the challenges involved.
• The definition and usage of scientific terms, such as 'exponential', can be context-dependent and may vary between mathematical and colloquial settings.